overheating

rodman may be on to something. Bass boost would increase power demand significantly.

Fan behind amp, blowing onto amp. Doesn't need to be a big fan. Should be able to set at Low, little/no noise. Preferably plugged into separate outlet.

Fan behind amp, blowing onto amp. Doesn't need to be a big fan. Should be able to set at Low, little/no noise. Preferably plugged into separate outlet.

Try using larger footers and place a laptop cooling fan underneath the amp.

Is you amp in a cabinet, if so, take it out.

Try taking the cabinet cover off the amp, so more air can circulate. I have a McIntosh MC402 and MD205, both in a audio cabinet. I have only had my 205 go into thermal shutdown once for a movie. I cut 4 2.5" holes inthe bottom of cabinet(audio not amp) and that let more air convect thru to dissapate the heat and never have had an issue again. As far as the 402 it has never had an issue with heat.